Make code coverage reporting optional

Description

When tests are run with --no-cov, we used to get an error since the .coverage file was absent when running the test report.

This makes the reporting allowed to fail so we don't get this error anymore

Changes proposed in this merge request:

• Allow reporting to fail to allow running tests without coverage

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approved this merge request

LGTM. Thanks very much!

assigned to @marge-bot123

merged

mentioned in commit a3f68c3d

mentioned in issue #916 (closed)